Alina, george și Diana au cules împreună 348 de castane. Goerge a cules de două ori mai multe decat Alina, dar cu 13 mai puține decât Diana. Cate castane a cules fiecare copil?

Aina: 67

George: 134

Diana: 147

Step-by-step explanation:

George (G) = 2 x Alina (A)        G = 2A

George (G) = Diana (D) - 13      G = D -13

George + Alina + Diana = 348  G + A + D = 348

2A + A + (2A + 13) = 348

5A + 13 = 348

5A = 335

A = 67

G = 2 x 67 = 134

D = G + 13 = 134 + 13 = 147

62.5 paisa

step-by-step explanation:

4000*70 = 280000

280000-(2000*90) = 100000

4000-2400 = 1600

100000/1600 = 62.5

( give brainliest)

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15